Jamieson, Fausset and Brown on Jeremiah 30:18

18. bring again ... captivity--(Jr 33:7, 11).

tents--used to intimate that their present dwellings in Chaldea were but temporary as tents.

have mercy on dwelling-places--(Psa 102:13).

own heap--on the same hill, that is, site, a hill being the usual site chosen for a city (compare Jos 11:13, Margin). This better answers the parallel clause, "after the manner thereof" (that is, in the same becoming ways as formerly), than the rendering, "its own heap of ruins," as in Jr 49:2.

palace--the king's, on Mount Zion.

remain--rather, "shall be inhabited" (see on Jr 17:6, Jr 17:25). This confirms English Version, "palace," not as others translate, "the temple" (see 1Ki 16:18; 2Ki 15:25).